Althorp Papers. Vol. mcccxiii. Including Letters Patent from George III to Lord Althorp appointing him a cornet in the Northamptonshire Gentlemen Yeomanry Cavalry (1802), and some papers relating to the Society for the Diffusion of Useful Knowledge; 1802-1843.
Althorp Papers. Vol. mcccxiv. Including notes made by the 4th Earl Spencer about Lord Althorp, notes by T. F. Kennedy on Lord Althorp, notes on philosophical matters in Lord Althorp's hand, and copies of notes by Lord Brougham, entitled 'Althorp', about Lord Althorp, with autograph annotations (...